crecelius



(No Model.) 3 Sheets'-Sheet 1.

L. J. GREGELIUS.

RAILWAY TRACK DRILL.

No. 375,669. Patented Dec. 27, 1887.

(No Model.) 3 SheetsSheet 2. L. J. CRECELIUS.

RAILWAY TRACK DRILL.

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Witnesses:

(NoModeL) 3 Sheets 8heet 3.

L. J. CREOELIUS. RAILWAY TRACK DRILL.

No. 375,669. Patented Dec. 27, 1887.

Fig .12

Witnesses: Inverrt'or:

UNITED STATES PATENT OFFICE.

LOUIS J. ORECELIUS, OF ST. LOUIS, MISSOURI.

RAILWAY TRACK-DRILL.

SPECIFICATION forming part of Letters Patent No. 375,669, dated December 27, 1887.

Application filed May 5, 1887. Serial No. 237,258. (X model.)

are: the construction of the drill-brace whereby combined strength and lightness and an easily-manipulated tool are obtained; making the drill in feeding to move longitudinally through the stock, which meanwhile remains stationary so far as longitudinal movement is concerned; supporting the ratchet and parts immediately therewith connected in a frame, which in turn at its outer end isjournaled upon the brace, so that it not only can be adjusted laterally therein, but also to be turned vertically thereon to point the drill in the plane of the brace or at an angle therewith; the automatic feed; the provision for elevating the working parts, so that they shall clear the tie above which the drill is being used.

Other features will appear in the description, and be noted in the claims.

In the annexed drawings,making part of this specification and exhibiting the most desirable mode of carrying out the improvement, Figure 1 is a plan of the improved tool, the drill not being shown. Fig. 2 is a view in perspective of the tool in position. Fig. 3 is a cross vertical section on the line 3 3 of Fig. 1, and including the drill and rail. Fig. 4 is a. section upon an enlarged scale on the line 4 4 of Fig. 3. Fig. 5 is a view in perspective of the ratchet. Fig. 6 is a view in perspective of the feed-screw. Fig. 7 is a view in perspective of the sleeve which encircles the ratchet-spindle; Fig. 8 is a view in perspective of the feed-nut. Fig. 9 is a view in perspective of the friction-plate between the feednut and the feed-wheehwhich last-named part is shown in perspective in Fig. 10. Fig. 11 is a vertical section on the line 11 11 of Fig. 1. Fig. 12 is a vertical section on the line 12 12 of Fig. 3, and Fig. 13 is a vertical section on the line 13 13 of Fig. 3.

The sameletters of reference denotethe same parts. l

A represents the brace 01' main frame of the tool. In outline it is substantially of the customary form, it being'composed of the two end bars, a a, and the main bar a, the end bars at a being hook-shaped to engage with the rail B, Figs. 2 and 3, and the main bar being attached to the end bars atasuflieient distance from the rail for the working parts of the tool to be included between the main bar and the rail. Instead, however, of the parts a a a being solid, they are preferably tubular, as thereby the construction is rendered much lighter-a matter of concern, for in use the track-drill is required to be carried along the track from place toplace, and whatever tends to diminish the weight of the tool is desirable; but the main bar a, by reason of its being tubular, is also greatly stili'ened in proportion to its weight, and as this part of the brace is required to sustain the thrust of the drill the brace is improved by making the part tubular; and by making all three parts tubular the brace not only can be readily and cheaply manufactured from pipes easily procurable, but they (the bars a a a") are adapted to be readily united by means of detachable connections-namely, the elbows a"-for, as will be presently referred to, the end bars need to be separated from the main bar when the drilloperating mechanism is removed from the brace. the brace more than would a simple head in a tubular bar at the points where the main and end bars are united.

0 represents the frame containing the mechanism for operating the drill D, Figs. 2 and 3. By making its outer end, say, in the form of the sleeve 0, it is attached to the main bar a, so that the frame can be revolved thereon,and also that it can be slipped thereon from end to end of the brace. Afterithas been adjustedinto ,the desired position, it can be clamped b means of the set-screw c. The frame is angled at c to admit the drill rotating and feeding mechanism.

E represents the ratchet. It is attached to or made in one piece with the tubular spindle E, which is journaled at c in the frame 0 and upon the opposite side of the ratchet is extended at e.

F represents the customary ratchet-lever, journaled by means of the sleeve f upon the ratchet-spindle ate, and it is adapted to co- The elbows a also serve to strengthen operate with the ratchet in the ordinary manner.

The drill D,instead ofsimply being chucked n the spindle E,is adapted to be passed thereinto almost its entire length, as indicated by the broken lines in Fig. 8. To this end the spindle E is perforated throughoutits length, and by this means the drill is held so steadily in its holder as to prevent it from wabblinga difficulty experienced with the drills now in useand in consequence of its being thus held the hole drilled conforms more closely in diameter to the drill, and the drilling operation 13 more easily and accurately performed. But, further, and especially, this advantage is obtamed: the ratchet-spindle, which constitutes the stock, so far as longitudinal movement is concerned, remains stationary, while the drill is fed longitudinally through the ratchet-spindle. By this means the drill at the start can be set nearly its length back'into the stock and the stock can be set in close proximity to the part being drilled, and by the time the drill is any distance out of the stock the drillpo nt has been entered into the part being drilled. The stock can thus be held perfectly steady in the drill-frame, and the drill is always well held either wholly in the stock' or in the stock in combination with the part being drilled. The drill can be fed by any suitable means. I have, however, devised an automatic feed, which forms part ofthis improvement, and which will be described.

G represents a feed'screw or follower in the rear of and preferably abutting directly against the drill. a It is adapted to work partly in the ratchet-spindle and partly in the tubular portion 0" of the frame 0. Its threaded portion g is'squared to cause the screw to ro tate with the ratchet-spindle, whose. perforation 6", in which the drill and screw are received, is also squared. The portion gof the screw or follower is provided with ashoulder, to prevent the screw from being worked out of the part c, the shoulder, when the screw has been moved out as far as desired, coming against the hub h of the feed-wheel H.

The screw portion 9 is rounded to enable it to act as ajournal to turn steadilyin the part c as the ratchet mechanism, drill, and screw are rotated. The feed-wheel H is arranged between the ratchet-spindle and the frame part 0 and is threaded and made to engage with the feed-screw; but when the feed-wheel is held stationary it acts as a nut to effect the feeding forward of the feed-screw, which then in turn acts as a thrust-bolt to feed the drill.

The preferable mode of operating the wheel H is as follows: I represents a nut adapted to be screwed on the hub h of the wheel H to ward and from the part h of the wheel, the movement beingindicated by the broken lines in Fig. 3. J represents a plate arranged between the nut I and wheel part h, and having an extension, j, Figs. 1, 2, and 9, which, say by inserting it in an opening, a, in the frame C, serves to hold theplate J from being turned around with the wheel H. By screwing the nut I against the plate Jand thereby pressing the plate against the wheel part h, the plate acts as a brake and the wheel H becomes locked to the plate J,.and as long as it remains locked the drill feeds. The mechanism can, by means of the nut I, be adjusted tocause the drill to feed against a lesser resistance and to yield against a greater resistance, and according as the nut I is tightened is the point at which the brake upon the wheel ceases to act. The plate J is preferably of springy material, is made to encircle the wheel-hub, and is slit at j, and the wheel part h is preferably chambered out at h to receive the central portion of the plate J when it is pressed against the wheel part. By means of the ratchet-spindle and the screw the ratchet mechanism is in effectjournaled at two points in the frame G-namely, at c and 0 Another objectof the improvement is to provide a tool which is wholly self-contained, so that when'transported it can be handled as a single piece. It is seen that the drill-operating mechanism is secured in the frame 0, and that the frame is fastened to the brace, and when it is desired to secure the frame it is turned into the plane of the brace and the ratchet-lever is brought down to a bearing upon the end bar, and then, by means of the keeper K, which is pivoted to the end bar, so that it can be turned around thereon, as indicated in the drawings, it (the ratchet-lever) is secured, so that the entire device is brought into and held in a compact form, as shown in Fig. 1.

As the drill has-frequently to be used directly over a tie, L, Fig. 2, the tool is provided,

with a leg, M, which serves to uphold the brace sufficiently for the drill-operating mechanism to clear the tie and be free to be worked. The leg is preferably an extension of the sleeve 0. The screw cannot be moved outward in the frame part 0" so far as to be disengaged from the feed-wheel H. This is preferably accomplished by proportioning the parts so that the outer end of the screw encounters the main bar a? before the other end of the screw passes the feed-wheel.

Then it is desired to remove the feed-screw and to detach the parts of the ratchet mech anism, as in case of repair, the brace A is dis sected by separating an end bar from the main bar a and then slipping the frame 0 off the main bar, whereupon the feedscrew can be withdrawn through the opening 0 Fig. 3, from the frame.

Idesire not to be confined to whatis termed a railway track-drill in applying several of the above-described features.

I claim-- I. In combination, a suitable supportingframe, the drilling-tool, the ratchet-wheel carrying said tool, a ratchet-spindle for rotating the same, and means operated by the rotation of the ratchet for automatically moving the drilling-tool longitudinally, substantially as described.

2. In combination, the supporting'frame G, a holder, as E, for the drilling-tool having rotary movement onlyin said frame, and means within the holder for automatically moving the drilling-tool longitudinally, substantially as described.

8. In combination, the supporting-frame having a hollow portion, 0 tool-holder, as E, supported in said frame, and having a hollow spindle, and means for giving the tool longitudinal movement, said means being located within the hollow spindle and the hollow portion of the frame, substantially as described.

4.. In combination, the drilling-tool, a r0 tary holder, E, therefor, the follower in the rear of the tool, independent thereof, operated by the revolution of the holder to give longi' tudinalmovement to the tool, and a controlling'nut in connection with the follower for regulating the movement of the said follower, substantially as described.

5. The combination, in a track-drill, of the main bar and the drill-frame C, said drill-frame being journaled upon said main bar to be ro I tated thereon, as described.

6. In a track-drill, the main bar, the drilling mechanism, and a frame, as O, for supporting said mechanism, said frame having ajournal-bearing at its end adapted to the main bar and to have sliding movement thereon, substantially as described.

7. In combination, the main bar, the drilling mechanism, the frame for supporting the same, said frame having a tubular journalbearing at its end adapted to the bar, and a set-screw, substantially as described.

8. In combination, the brace-frame com posed of the bar A and end bars, a a, a drilling mechanism, a drill-frame for supporting said mechanism carried by the main bar, and arranged, when in its normal position, to lie in the same plane with the brace-frame, substantially as described.

to hold the lever F, substantially as described.

10. The combination, in a track or other drill, of the perforated ratchet spindle, the perforated frame part 0 the drill D, and the screw G, substantially as described.

11. The combination of the brace, the drillframe, the screw, the wheel H, the nut I, and the plate J, substantially as described.

12. The combination of the drill, the screw, the ratchet and spindle, the frame 0, the brace, the wheel H, the nut I, the plate J, and the ratchet'lever, substantially as described.

18. The combination of the ratchet-spindle having the squared perforation and the screw having its threaded portion squared, as described.

, 14. The combination of the screw having the shoulder, the wheel H, and the drill-frame part 0 as described.

15. The combination of the screw, the wheel H, the drill-frame part c, and the main bar a, as described.

16. The combination of the drill-frame O, the ratchet-spindle, and the screw, as described, and for thepurpose of supporting said ratchetspindle at both ends.

17. The drill-frame G, perforated at c and c, in combination with the screw and the drillbrace A, substantially as described.

18. In combination, the brace -frame, the drilling mechanism, and aleg, M, for supporting the brace-frame and said drilling mechanism, substantially as described.

19. The combination of the drill D, the perforated ratchet spindle, and the screw G, said screw acting to push the drill longitudinally through the spindle, as described.

LOUIS J. GREGELIUS.

Witnesses:

O. D. MOODY, A. l\I.'EVERIs'r. 

